Definition of Ac in English:


  • The chemical element actinium.

Definition of AC in English:


  • 1Alternating current:

    [as modifier] ‘the AC supply’
  • 2Air conditioning:

    ‘a sedan with power steering and AC’
  • 3Aircraftman or Aircraftwoman.

  • 4Appellation contrôlée:

    ‘AC Sauvignon and Chardonnay’
  • 5Athletic club.

  • 6North American Acre:

    ‘a 22-ac. site’
  • 7Before Christ.

  • 8Companion of the Order of Australia.